1 files changed, 11 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/fneg-ext.ll b/test/Transforms/InstCombine/fneg-ext.ll
index 49ad232..922d26a 100644
--- a/test/Transforms/InstCombine/fneg-ext.ll
+++ b/test/Transforms/InstCombine/fneg-ext.ll
@@ -10,3 +10,14 @@ define double @test1(float %a, double %b) nounwind readnone ssp uwtable {
   %3 = fsub double %b, %2
   ret double %3
 }
+
+; CHECK: test2
+define double @test2(float %a, double %b) nounwind readnone ssp uwtable {
+; CHECK-NOT: fsub
+; CHECK: fpext
+; CHECK: fadd fast
+  %1 = fsub float -0.000000e+00, %a
+  %2 = fpext float %1 to double
+  %3 = fsub fast double %b, %2
+  ret double %3
+}